Commit Graph

19 Commits

Author SHA1 Message Date
Matt Arsenault
268284573c AMDGPU: Use removeAllRegUnitsForPhysReg
llvm-svn: 354686
2019-02-22 19:03:36 +00:00
Chandler Carruth
ae65e281f3 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00
Stanislav Mekhanoshin
f7aedb309c [AMDGPU] Fix build failure, second attempt
Some compilers complain that variable is captured and some
complain when it is not. Switch to [&].

llvm-svn: 349006
2018-12-13 05:52:11 +00:00
Stanislav Mekhanoshin
edd6d8c36b [AMDGPU] Fix build failure
Fixed error 'lambda capture 'CondReg' is not required to be captured
for this use'.

llvm-svn: 349005
2018-12-13 05:21:25 +00:00
Stanislav Mekhanoshin
198d2e45b0 [AMDGPU] Simplify negated condition
Optimize sequence:

  %sel = V_CNDMASK_B32_e64 0, 1, %cc
  %cmp = V_CMP_NE_U32 1, %1
  $vcc = S_AND_B64 $exec, %cmp
  S_CBRANCH_VCC[N]Z
=>
  $vcc = S_ANDN2_B64 $exec, %cc
  S_CBRANCH_VCC[N]Z

It is the negation pattern inserted by DAGCombiner::visitBRCOND() in the
rebuildSetCC().

Differential Revision: https://reviews.llvm.org/D55402

llvm-svn: 349003
2018-12-13 03:17:40 +00:00
Matt Arsenault
06ed91a16b AMDGPU: Don't delete instructions if S_ENDPGM has implicit uses
This can leave behind the uses with the defs removed.
Since this should only really happen in tests, it's not worth the
effort of trying to handle this.

llvm-svn: 340866
2018-08-28 18:55:55 +00:00
Tom Stellard
e236141513 AMDGPU: Refactor Subtarget classes
Summary:
This is a follow-up to r335942.
- Merge SISubtarget into AMDGPUSubtarget and rename to GCNSubtarget
- Rename AMDGPUCommonSubtarget to AMDGPUSubtarget
- Merge R600Subtarget::Generation and GCNSubtarget::Generation into
  AMDGPUSubtarget::Generation.

Reviewers: arsenm, jvesely

Subscribers: kzhuravl, wdng, nhaehnle, yaxunl, dstuttard, tpr, t-tye, javed.absar, llvm-commits

Differential Revision: https://reviews.llvm.org/D49037

llvm-svn: 336851
2018-07-11 20:59:01 +00:00
Tom Stellard
6f27d8c6b3 AMDGPU: Remove #include "MCTargetDesc/AMDGPUMCTargetDesc.h" from common headers
Summary:
MCTargetDesc/AMDGPUMCTargetDesc.h contains enums for all the instuction
and register defintions, which are huge so we only want to include
them where needed.

This will also make it easier if we want to split the R600 and GCN
definitions into separate tablegenerated files.

I was unable to remove AMDGPUMCTargetDesc.h from SIMachineFunctionInfo.h
because it uses some enums from the header to initialize default values
for the SIMachineFunction class, so I ended up having to remove includes of
SIMachineFunctionInfo.h from headers too.

Reviewers: arsenm, nhaehnle

Reviewed By: nhaehnle

Subscribers: MatzeB, kzhuravl, wdng, yaxunl, dstuttard, tpr, t-tye, javed.absar, llvm-commits

Differential Revision: https://reviews.llvm.org/D46272

llvm-svn: 332930
2018-05-22 02:03:23 +00:00
Nicola Zaghen
9667127c14 Rename DEBUG macro to LLVM_DEBUG.
The DEBUG() macro is very generic so it might clash with other projects.
The renaming was done as follows:
- git grep -l 'DEBUG' | xargs sed -i 's/\bDEBUG\s\?(/LLVM_DEBUG(/g'
- git diff -U0 master | ../clang/tools/clang-format/clang-format-diff.py -i -p1 -style LLVM
- Manual change to APInt
- Manually chage DOCS as regex doesn't match it.

In the transition period the DEBUG() macro is still present and aliased
to the LLVM_DEBUG() one.

Differential Revision: https://reviews.llvm.org/D43624

llvm-svn: 332240
2018-05-14 12:53:11 +00:00
Shiva Chen
208c23a5a2 [DebugInfo] Examine all uses of isDebugValue() for debug instructions.
Because we create a new kind of debug instruction, DBG_LABEL, we need to
check all passes which use isDebugValue() to check MachineInstr is debug
instruction or not. When expelling debug instructions, we should expel
both DBG_VALUE and DBG_LABEL. So, I create a new function,
isDebugInstr(), in MachineInstr to check whether the MachineInstr is
debug instruction or not.

This patch has no new test case. I have run regression test and there is
no difference in regression test.

Differential Revision: https://reviews.llvm.org/D45342

Patch by Hsiangkai Wang.

llvm-svn: 331844
2018-05-09 02:42:00 +00:00
Adrian Prantl
076a6683eb Remove \brief commands from doxygen comments.
We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.

Patch produced by

  for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done

Differential Revision: https://reviews.llvm.org/D46290

llvm-svn: 331272
2018-05-01 15:54:18 +00:00
Matthias Braun
ddd8ed6709 MachineFunction: Return reference from getFunction(); NFC
The Function can never be nullptr so we can return a reference.

llvm-svn: 320884
2017-12-15 22:22:58 +00:00
Matthias Braun
92ba47acd7 Rename LiveIntervalAnalysis.h to LiveIntervals.h
Headers/Implementation files should be named after the class they
declare/define.

Also eliminated an `#include "llvm/CodeGen/LiveIntervalAnalysis.h"` in
favor of `class LiveIntarvals;`

llvm-svn: 320546
2017-12-13 02:51:04 +00:00
Matt Arsenault
6dd43b9ed2 AMDGPU: Fix infinite loop with dbg_value
Surprisingly SIOptimizeExecMaskingPreRA can infinite loop
in some case with DBG_VALUE. Most tests using dbg_value are
run at -O0, so don't run this pass. This seems to only
happen when the value argument is undef.

llvm-svn: 319808
2017-12-05 18:23:17 +00:00
Matt Arsenault
ce67d359ea AMDGPU: Recompute scc liveness
The various scalar bit operations set SCC,
so one is erased or moved it needs to be recomputed.
Not sure why the existing tests don't fail on this.

llvm-svn: 312819
2017-09-08 18:51:26 +00:00
Stanislav Mekhanoshin
f174005679 [AMDGPU] Eliminate no effect instructions before s_endpgm
Differential Revision: https://reviews.llvm.org/D36585

llvm-svn: 310987
2017-08-16 04:43:49 +00:00
Stanislav Mekhanoshin
92fdd313b1 [AMDGPU] Fix asan error after last commit
Previous change "Turn s_and_saveexec_b64 into s_and_b64 if
result is unused" introduced asan use-after-poison error.
Instruction was analyzed after eraseFromParent() calls.

Move analysys higher than erase.

llvm-svn: 309779
2017-08-02 01:18:57 +00:00
Stanislav Mekhanoshin
4a9ea2a58e [AMDGPU] Turn s_and_saveexec_b64 into s_and_b64 if result is unused
With SI_END_CF elimination for some nested control flow we can now
eliminate saved exec register completely by turning a saveexec version
of instruction into just a logical instruction.

Differential Revision: https://reviews.llvm.org/D36007

llvm-svn: 309766
2017-08-01 23:44:35 +00:00
Stanislav Mekhanoshin
c7055f98bf [AMDGPU] Collapse adjacent SI_END_CF
Add a pass to remove redundant S_OR_B64 instructions enabling lanes in
the exec. If two SI_END_CF (lowered as S_OR_B64) come together without any
vector instructions between them we can only keep outer SI_END_CF, given
that CFG is structured and exec bits of the outer end statement are always
not less than exec bit of the inner one.

This needs to be done before the RA to eliminate saved exec bits registers
but after register coalescer to have no vector registers copies in between
of different end cf statements.

Differential Revision: https://reviews.llvm.org/D35967

llvm-svn: 309762
2017-08-01 23:14:32 +00:00